Brad F. Lyles

Associate Research Scientist Hydrogeology
427261642e4c796c6573406472692e656475
775-673-7347

Professional Interests

Mr. Lyles' research and experience are focused on the study of ion and isotope geochemistry. Current research has included the use of geostatistics to refine groundwater gradients to further understand geochemical mixing in carbonate and alluvial aquifers of southern Nevada. Hydraulic parameters and geochemical variability have been used successfully to delineate buried geologic structures of Las Vegas Valley. Time-series spring data have been used to identify groundwater recharge characteristics.

Other research interests include the development of data acquisition systems for hydrologic studies such as the development of a water stage and chemistry data logging system in a limestone karst environment; the design and development of a hydrochemical logging tool capable of measuring temperature, electrical conductance, pH, dissolved oxygen, and bromide, consecutively; and, the development of a thermal-pulse flowmeter logging tool for measuring vertical groundwater flow in boreholes.

Research Areas

  • Hydrology of the Unsaturated Zone
  • Contaminant Transport
  • Hydrogeological Controls on Availability and Quality of Ground Water
  • Global Environmental Hydrology
  • Integrated Watershed System

Education

DegreeInstitutionArea
M.S. University of Nevada, Reno Hydrogeology
B.A. California State University, Fresno Geology

Publications & Presentations

2016

Huntington, J. L., McEvoy, D. J., McCurdy, G. D., Lyles, B. F. (2016). NICE Net and Reference Evapotranspiration in Nevada, Western States Water Council Irrigation Management Information Systems Workshop: San Diego, CA, August 25, 2016
Strachan, S., Kelsey, E. P., Brown, R. F., Dascalu, S., Harris, F., Kent, G., Lyles, B. F., McCurdy, G. D., Slater, D., Smith, K. (2016). Filling the Data Gaps in Mountain Climate Observatories Through Advanced Technology, Refined Instrument Siting, and a Focus on Gradients, Mountain Research and Development, 36, (4), 518-527, doi: 10.1659/MRD-JOURNAL-D-16-00028.1

2015

Chapman, J. B., Cooper, C. A., Lyles, B. F., Hershey, R. L., Healey, J. M. (2015). Handbook: Collecting Groundwater Samples from Monitoring wells in Frenchman Flat, CAU 98, DOE/NV/0000939-23, DRI 45261
James, R. M., Huntington, J. L., Pearson, C., Lyles, B. F. (2015). Assessing Emissivity Effects on Estimated Evaporation using Aerodynamic-Bulk Mass Transfer Methods, Sensors, Submitted
Lyles, B. F., McCurdy, G. D., Healey, J. M., Campbell, S. A. (2015). 2014 Annual Report Timber Mountain Environmental Monitoring Station, DOE/NV/0000939-LTR2015-24

2014

Lyles, B. F., McCurdy, G. D., Russell, C. E., Healey, J. M. (2014). 2013 Annual Report: Timber Mountain Precipitation Monitoring Station, DOE/NV/0000939-LTR2014-16

2013

Huntington, J. L., Dunkerly, C. W., Chapman, A. L., McCurdy, G. D., Wolff, A. J., Lyles, B. F., Allen, R. (2013). Highlights from the Nevada Integrated Climate and Evapotranspiration Network - NICE Net

2008

Gillespie, D. R., Lyles, B. F., Healey, J. M., Chapman, J. B. (2008). Investigation of Rapid Decrease in Water Level at MV-2 Lower Piezometer, Central Nevada Test Area

2007

Hassan, A., Chapman, J. B., Lyles, B. F. (2007). Validation Analysis of the Shoal Groundwater Flow and Transport Model
Hershey, R. L., Heilweil, P., Gardner, P., Lyles, B. F., Earman, S. B., Thomas, J. M., Lundmar, K. W. (2007). Ground-water chemistry interpretations supporting the Basin and Range regional carbonate-rock aquifer system (BARCAS) study, eastern Nevada and western Utah
Hershey, R. L., Justet, L., Heilweil, V., Gardner, P., Lyles, B. F., Earman, S. B., Thomas, J. M., Lundmark, K. (2007). Water Chemistry and Ground-water Flowpath Delineation in the Basin and Range Regional Carbonate Aquifer System (BARCAS), Eastern Nevada and Western Utah, DRI Report No. 41230
Knochenmus, L. A., Laczniak, R. J., Moreo, M. T., Sweetkind, D. S., Wilson, J. W., Thomas, J. M., Justet, L., Hershey, R. L., Earman, S. B., Lyles, B. F., Lundmark, K. (2007). Ground-water conditions, in Welch, A. H., Bright, D. J., and Knochenmus, L. A., eds., Water resources of the Basin and Range carbonate-rock aquifer system, White Pine County, Nevada, and adjacent areas in Nevada and Utah, U. S. Geological Survey Scientific Investigations Report 2007-5261, 37-42
Laczniak, R. J., Flint, A. L., Moreo, M. T., Knochenmus, L. A., Lundmark, K., Pohll, G. M., Carroll, R. W., Smith, J. L., Welborn, T. L., Heilweil, V. M., Pavelko, M. T., Hershey, R. L., Thomas, J. M., Earman, S. B., Lyles, B. F. (2007). Ground-water budgets, in Welch, A. H., Bright, D. J., and Knochenmus, L. A., eds., Water resources of the Basin and Range carbonate-rock aquifer system, White Pine County, Nevada, and adjacent areas in Nevada and Utah, U. S. Geological Survey Scientific Investigations Report 2007-5261, 43-68

2006

Decker, D. L., Carnahan, T. G., Murphy, J. E., Lyles, B. F. (2006). Subsurface in situ tritium monitoring instrument development: interim report

2004

Albright, W. H., Benson, C. H., Gee, G. W., Roesler, A., Abichou, T., Apiwantragoon, P., Lyles, B. F., Rock, S. A. (2004). Field water balance of landfill final covers, Journal of Environmental Quality, 33

2003

Reimus, P., Pohll, G. M., Mihevc, T. M., Chapman, J. B., Haga, M., Lyles, B. F., Kosinski, S., Niswonger, R. G., Sanders, P. (2003). Testing and parameterizing a conceptual model for solute transport in a fractured granite using multiple tracers in a forced-gradient test, Water Resources Research, 39, 12, 1356-1370
Young, M. H., Lyles, B. F., Dana, G. L., Cooper, C. A. (2003). Evaluation of Infiltration Through Biocovers at the Outerloop RDF Louisville, KY, DRI Report No. 41187

1996

Tyler, S., Kranz, S., Parlange, M., Albertson, J., Cochran, G. F., Lyles, B. F., Holder, G. (1996). Estimation of Ground-Water Evaporation and Salt Flux from Owens Dry Lake, California, U.S.A., DRI Report No. 41151

1992

Jacobson, E., Cochran, G. F., Lyles, B. F., Mihevc, T. M. (1992). Mill Site Aquifer, Owens Dry Lake: Analysis of Long-Term Aquifer Test & Pumping Effects, 37, DRI Report No. 41134
Jacobson, R. L., Cochran, G. F., Lyles, B. F., Mihevc, T. M. (1992). River Site Upper Aquifer Owens Dry Lake: Analysis of Long-Term Aquifer Test & Pumping Effects, 37, DRI Report No. 41135

1988

Lyles, B. F., Hess, J. W. (1988). Isotope and Ion Geochemistry in the Vicinity of the Las Vegas Valley Shear Zone, 78, DRI Report No. 41111

1987

Lyles, B. F. (1987). Data Report: Water Level Data from Northern Las Vegas Valley, 26, DRI Report No. 41106
Lyles, B. F., Jacobson, R. L., Hess, J. W. (1987). Reconnaissance of Groundwater Quality in Southern Nevada, 87, DRI Report No. 41101

Authors

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